We’ve been calling then the establishment for decades, because that’s what they are. I have no clue where you got the idea that calling them the establishment is some new thing that happened in the last six months

Just because someone else supposedly controls the DNC now doesn’t magically make all the people behind the curtain disappear. The DNC is only part of the equation. The establishment is the establishment because they still hold all the most powerful public offices and because they control most of the donor money and media access.